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A288868
Denominators of the z-sequence for the Sheffer matrix S2*P =
A048993
*
A007318
=
A049020
.
1
1, 1, 3, 4, 30, 12, 84, 4, 15, 10, 22, 3, 455, 105, 1, 48, 510, 36, 2660, 168, 660, 1320, 184, 720, 27300, 6552, 216, 16, 3480, 240, 114576, 176, 5355, 3570, 126, 6, 959595, 10374, 630, 840
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OFFSET
0,3
COMMENTS
The numerators are in
A288867
where details and examples are given.
LINKS
Table of n, a(n) for n=0..39.
FORMULA
E.g.f. of r(n) =
A288867
(n)/a(n), n >= 0: (exp(x)-1)/(log(1+x)*exp(x)).
a(n) = denominator(r(n)) (r(n) in lowest terms).
CROSSREFS
Cf.
A288867
.
Sequence in context:
A354844
A100600
A345022
*
A076001
A225629
A032833
Adjacent sequences:
A288865
A288866
A288867
*
A288869
A288870
A288871
KEYWORD
nonn
,
frac
,
easy
AUTHOR
Wolfdieter Lang
, Jun 20 2017
STATUS
approved
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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)